The Epic-Puranic chronology is a timeline of Hindu mythology based on the Itihasa (the Sanskrit Epics, that is, the Mahabharata and the Ramayana) and the Puranas. These texts have an authoritaive status in Indian tradition, and narrate cosmogeny, royal chronologies, myths and legendary events. The central dates here are the Kurukshetra War and the start of the Kali Yuga. The Epic-Puranic chronology is referred to by proponents of Indigenous Aryans to propose an earlier dating of the Vedic period, and the spread of Indo-European languages out of India, arguing that "the Indian civilization must be viewed as an unbroken tradition that goes back to the earliest period of the Sindhu-Sarasvati Valley traditions (7000 BCE to 8000 BCE)."[1]